DGX · Healthcare
Quest Diagnostics Inc
33/100
Smart-money confidence1 of 3 sources positive
Weak — few signals
No standout activity across the feeds we track.
Hedge funds
43
Congress
No data
Insiders
No data
Cross-source blend of hedge-fund breadth, Congress trades, and insider Form 4s. ·
how the score works
Market cap
$25.9B
Industry
Diagnostics & Research
Sector
Healthcare
Exchange
NYSE
About QUEST DIAGNOSTICS INC
Quest Diagnostics Incorporated provides diagnostic testing and services in the United States. The company develops and delivers diagnostic information services, such as routine, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services. It also provides services under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to physicians, hospitals, patients and consumers, health plans, government agencies, employers, retailers, pharmaceutical companies and insurers commercial clinical…
Who's behind the signal
Every informed buyer we can see on DGX, across all three feeds.
Hedge funds · 8
Gotham Asset Mgmt (Greenblatt)
Increased +65%
Tudor Investment (Paul Tudor Jones)
Increased +494%
Millennium Management (Englander)
Increased +4%
Davis Selected Advisers
Unchanged
Citadel Advisors
Decreased −18%
D.E. Shaw & Co
Decreased −55%
+2 more in the full breakdown below ↓
Congress · 0
No congressional trades on record.
Insiders
No significant Form 4 insider activity in the window.
Congressional trades · 11 on record
Disclosures from 2020-01-17 to 2025-10-30
| Trade date | Member | Chamber | Action | Amount |
|---|---|---|---|---|
| 2025-10-30 | Julie Johnson · D-TX | House | Sold | $1,001 - $15,000 |
| 2022-03-14 | Earl Blumenauer · D-OR | House | Sold | $1,001 - $15,000 |
| 2022-02-24 | Earl Blumenauer · D-OR | House | Bought | $1,001 - $15,000 |
| 2021-07-28 | Carol D. Miller · R-WV | House | Bought | $15,001 - $50,000 |
| 2021-04-09 | Sara Jacobs · D-CA | House | Sold | $50,001 - $100,000 |
| 2020-06-01 | Dean Phillips · D-MN | House | Sold | $1,001 - $15,000 |
| 2020-04-02 | Thomas R. Carper · D-DE | Senate | Bought | $1,001 - $15,000 |
| 2020-04-02 | Dean Phillips · D-MN | House | Sold | $1,001 - $15,000 |
| 2020-03-02 | Earl Blumenauer · D-OR | House | Bought | $1,001 - $15,000 |
| 2020-02-10 | Dean Phillips · D-MN | House | Sold | $1,001 - $15,000 |
Show the other 1
| Trade date | Member | Chamber | Action | Amount |
|---|---|---|---|---|
| 2020-01-17 | Dean Phillips · D-MN | House | Bought | $1,001 - $15,000 |
Not a model pick — but on our radar.
QUEST DIAGNOSTICS INC isn't in the top-10 model right now, but 8 tracked investors hold it. Everything below is real signal from public filings — treat this as a watch candidate, not a conviction call.
8
Investors
0
New positions
3
Increasing
3
Decreasing
2
Unchanged
Price History
Loading price data...
Return:
High:
Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Trust weight: 1.1×
% of portfolio
0.1%
Position change
+65%
0.1% of Gotham Asset Mgmt's portfolio
Trust weight: 1.2×
% of portfolio
0.0%
Position change
+494%
0.0% of Tudor Investment's portfolio
Trust weight: 1.0×
% of portfolio
0.0%
Position change
+4%
0.0% of Millennium Management's portfolio
Trust weight: 1.1×
% of portfolio
1.5%
Position change
—
1.5% of Davis Selected Advisers's portfolio
Trust weight: 1.0×
% of portfolio
0.1%
Position change
−18%
0.1% of Citadel Advisors's portfolio
Trust weight: 1.0×
% of portfolio
0.0%
Position change
−55%
0.0% of D.E. Shaw & Co's portfolio
Trust weight: 1.3×
% of portfolio
0.0%
Position change
—
0.0% of Bridgewater Associates's portfolio
Trust weight: 1.0×
% of portfolio
0.0%
Position change
−25%
0.0% of AQR Capital Management's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to QUEST DIAGNOSTICS INC
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell QUEST DIAGNOSTICS INC or any security.
Get the Weekly Update
Every week, we'll send you what Buffett, Dalio, Ackman and 47 other legendary investors are buying — free, straight from their SEC filings.
Free forever · No spam · Unsubscribe anytime